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吡氟酰草胺属于取代吡啶基酰苯胺类除草剂,主要用于玉米、大豆及麦田防除多种一年生禾本科杂草和某些阔叶杂草。该品种为选择性接触和残留除草剂,作用方式为通过对八氢番茄红素脱氢酶的抑制,阻碍类胡罗卜素生物合成。当杂草萌发通过药土层幼芽或根系均能吸收药剂,吸收药剂的杂草植株中类胡萝卜素含量下降,导致叶绿素被破坏,细胞膜破裂,作用速度较快,使用后杂草表现为白化,最后整株萎蔫死亡。死亡速度与光强度有关,光强快、光弱慢。一般而言,施药量为125~250g/hm2,芽前或芽后早期用
Difluorofluorane is a substituted pyridylanilide herbicides, mainly used in corn, soybean and wheat fields control a variety of annual grass weeds and some broadleaf weeds. The variety is a selective exposure to and residual herbicide, by acting on the inhibition of phytoene dehydrogenase, hindering carotenoid biosynthesis. When the weeds germinated through the soil layer buds or roots can absorb the drug, the absorption of pesticides weeds plant carotenoid content decreased, resulting in chlorophyll is destroyed, the cell membrane rupture, the role of speed, the use of weeds after the performance of albino , The whole wilted death. Death speed and light intensity, light fast, weak light slowly. In general, the application rate of 125 ~ 250g / hm2, pre-bud or bud early use